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Official data from INPI

PROCESSO E APARELHO PARA FORMAR UMA CHAPA DE VIDRO

Em AnáliseInvention Patent

Application data

Number

PI8505817

Type

Invention Patent

Filing

11/20/1985

Publication

08/12/1986

Progress at the INPI

  1. Filing11/20/85
  2. Publication08/12/86
  3. Examination03/10/87
  4. Allowance02/13/91
  5. Grant09/24/91
  6. Expired07/15/08

The letters patent expired on 07/15/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 03/10/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Glasstech, Inc.

US

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Inventors

H. M. (pessoa física)

US

Technical data

Priority claims

US

674.039 · 11/23/1984

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

03/10/1987

RPI 855

Publicação do pedido de patente

#3.1

08/12/1986

RPI 825

Pedido de patente depositado

#2.1

01/28/1986

RPI 797

Carta-patente expirada

#21.1

Patente extinta em 20/11/2000

07/15/2008

RPI 1958

Concessão da patente

#16.1

09/24/1991

RPI 1086

Notificação para pagamento de retribuição

#13.1

05/28/1991

RPI 1069

Deferimento

#9.1

02/13/1991

RPI 1054

Exigência - art. 36 da LPI

#6.1

10/02/1990

RPI 1035

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